초록 ▼

A golf putter in which most of the clubhead mass is distributed at three or more individual or one or more arcuate locations within a "Mass Ring" approximately equidistant from, and as remote as possible from, the clubhead planar center of mass with the clubshaft axis preferably forward of the clubh

A golf putter in which most of the clubhead mass is distributed at three or more individual or one or more arcuate locations within a "Mass Ring" approximately equidistant from, and as remote as possible from, the clubhead planar center of mass with the clubshaft axis preferably forward of the clubhead center of mass thus maximizing both putter and clubhead planar moment of inertia for improved putter performance during mis-hits. Maximum remote mass is achieved by interconnecting the remote high mass areas (Mass Ring) with the putterface striking area and the putter shaft connection point with a light weight rigid open (see thru) truss system so arranged to enhance the visibility of the Sighting Field and/or aim or Sight Line on the putterhead while preventing undesirable vibration of individual clubhead members.

대표청구항 ▼

The invention claimed is: 1. A golf putter comprising a shaft and a putterhead connected to said shaft at a connection point, said putterhead having a center of mass and a strikeface, said putterhead including weighting means defining a mass that comprises at least 70% of total putterhead mass, sai

The invention claimed is: 1. A golf putter comprising a shaft and a putterhead connected to said shaft at a connection point, said putterhead having a center of mass and a strikeface, said putterhead including weighting means defining a mass that comprises at least 70% of total putterhead mass, said weighting means being positioned at continuous or discontinuous locations within a planar, circular Mass Ring, a vertically oriented hollow cylinder approximately concentric with said center of mass, said Mass Ring having an outside diameter that is approximately coincident with the extreme planar dimensions of said putterhead and an inside diameter which is at least 70% of said outside diameter, wherein said weighting means comprises one or more weight elements, a majority of said weight elements having a planar length greater than a planar width and being oriented such that said length is generally normal to a line extending radially outward from said putterhead center of mass, allowing said majority of said weight elements to be located within said Mass Ring, said putterhead further comprising at least one structural member connected to a central portion of said strikeface for establishing solid rigid communication between said weighting means, said central portion and said connection point. 2. The putter of claim 1 wherein the putterhead facewidth is between 8 and 18 cm, and the putterhead mass is between 220 and 550 gms. 3. The putter of claim 1 or 2 where the shaft axis is at least 2 cm, but less than 10 cm in front of the putterhead planar center of mass. 4. The putter of claim 1 where the at least one structural member is a light weight rigid high planar open area frame or truss of cast or fabricated thin section truss members of T, L, I, l, or tubular sections, or combinations thereof. 5. The putter of claim 4 wherein the lightweight open rigid frame is made of aluminum, titanium, steel or stainless steel, ceramic, fiber reinforced composites, or combinations thereof, with a specific gravity at or below that of steel or stainless steel. 6. The putter of claims 4 or 5 wherein the light weight open rigid frame is made of predominantly open cell honeycomb of predominantly triangular cells. 7. The putter of claims 4 or 5 where said weighting means is of a material with a specific gravity at or above that of steel or stainless steel. 8. The putter of claims 1 or 4 with an elongated Sighting Field at least ⅔ of putterface width with Sight Line transverse to the putter face approximately centered on the intended strikepoint such Sighting Field having a width between 3.5 cm and 5.1 cm and such Sighting Field being comprised of one or more white, bright or, light, or reflective colored shapes consisting of stripes, circles, arrows, ovals, rectangles, diamonds, or hexagons with convex or concave rounded or pointed ends or combinations thereof, such Sight Line centrally located on such Sighting Field being either a central contrasting color narrow stripe of less than 1 cm width or multiple points centrally located within the above shapes comprising said Sighting Field. 9. The putter of claim 8 wherein those portions of the putterhead lying outside the Sighting Field or Sight Line have a high planar open area, exceeding 65%, allowing the putting green to show through such openings thus enhancing focus and visibility of the axial Sighting Field or Sight Line. 10. The putter of claim 8 wherein the Sighting Field or Sight Line is detachable or interchangeable from the faceplate and frame accommodating individual player preferences. 11. The putter of claim 10 wherein the Sighting Field or Sight Line can be angularly adjusted by plus or minus 6째 to accommodate alignment or stroking tendencies of individual players. 12. The putter of claim 8 wherein central portions of the rigid frame also serve as the Sighting Field or Sight Line. 13. The putter of claim 8 and golf ball wherein the Sight Line marking on the putterhead matches a partial or full circumference stripe, logo, or solid block lettering on the ball provided by player, manufacturer, or others, such ball being aimed by the player toward the intended target thereby further extending the effective Sight Line. 14. The golf putter of claim 1 wherein said majority of said weight elements are arcuate in shape. 15. The putter of claim 1 with an elongated Sight Line at least 75% of putterface width transverse to the putterface approximately centered on the intended strikepoint having a width of less than 1 cm. 16. The putter of claim 1 where those portions of the putterhead lying outside the Sighting Field or Sight Line are dark, or non-reflective, or contrasting in color to the Sighting Field or Sight Line enhancing focus and visibility of the axial Sighting Field or Sight Line.